ICD-10-CM › K00-K95 › K00-K14 › K09 Cysts of oral region, not... › K09.8
Other cysts of oral region, not elsewhere classified
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Other cysts of oral region, not elsewhere classified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from K09 Cysts of oral region, not elsewhere classified
Excludes2 - not included here
- cysts of jaw (M27.0-, M27.4-)
- radicular cyst (K04.8)
Includes
- lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Lump
- Retained
- Cyst > mouth
- Cyst > buccal
- Epstein's > pearl
- Pearl > Epstein's
- Cyst > dermoid > mouth
- Cyst > dermoid > oral soft tissue
- Cyst > epidermal, epidermoid > mouth
- Cyst > oral > region > specified NEC
- Cyst > lymphoepithelial, oral soft tissue
- Cyst > oral > soft tissue > specified NEC
- Cyst > epidermal, epidermoid > oral soft tissue
Codes in the same group
| Code | Description | Status |
|---|---|---|
| K09.0 | Developmental odontogenic cysts | Valid |
| K09.1 | Developmental (nonodontogenic) cysts of oral region | Valid |
| K09.9 | Cyst of oral region, unspecified | Valid |